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ip camera qnap You should read article below before you buy IP Camera.

WIFI OR PoE FOR IP CAMERA, WHICH MAY BE THE BEST?


#1. YOU DON'T NEED TO USE BOTH Wireless AND PoE


Yes, you can't use both WiFi and PoE at same time. Once you hook up the IP camera to your router, you have to choose one of them, either Wi-fi or PoE.


Before you decide to buy an IP camera or a complete IP camera system, you should analysis the set up environment and check out which functions you want to achieve.


WiFi or PoE, which is the foremost? As a senior technician that has four years in video monitoring industry, my response to this question is PoE is the advised choice.



#2. WHAT'S WIFI


WiFi is a kind of wireless technology which allows network devices transfer data through cordless sign (2.4GHz UHF group, 5GHz SHF group).


Obviously, once the IP camera helps Wi-fi, the camera can hook up your router without needing hardwired connection. Wireless can allow IP camera become lightweight, this is the advantage of WiFi.


But there are two downsides on WiFi, which are; every electronic devices require power, that means your IP camera still requires cable television for connection.


Up to now, I haven't found any IP surveillance cameras have the ability to operate with batteries.



#3. WHAT LENGTHS Will WI-FI REACH?


Limited WiFi transmission distance is another problem.


What lengths does Wi-Fi reach? It's not easy to answer this question.


When discussing WiFi coverage, we have many things to consider including power rate of WiFi device, environment (interior or outdoor) and even more.


Typically, a home/office router (TP-Link) can provide WiFi coverage extends to up to 10 meters inside.


When Wi-fi devices will work outdoor without hurdle, the transmission distance will be much way.


To extend the Wi-fi coverage or distance, you can install WiFi gain access to point. This gain access to point (or hotspot) has a variety of about 20 meters (66 ft) indoors and a greater range outdoors.



#4. WHAT'S POE?


PoE means Power over Ethernet, this is not a fresh technology, the first device adopts PoE technology premiered by Cisco in 1999. Transmitting both data and power supply over single Ethernet wire (Feline5/6) is the key feature of PoE technology.


So long as your IP camera supports PoE, you just need to hook up it to a PoE NVR or PoE switch, then it works. PoE technology permit IP cams support plug-and-play unit installation, which greatly reduced the unit installation procedures, and eliminate the necessity of power cable and supply.


Today, PoE has two standard including IEEE802.3af, and IEEE802.3at. IEEE802.3af provides maximum ability rate is to 15.4 W of DC electric power (least 44V DC and 350mA) to each device.


In order to provide power for high power utilization devices, the IEEE association made another new standard - IEEE802.3at, this standard also known as PoE+ or PoE plus, provides up to 25.5 W of ability.


PoE technology has been trusted in:

-           IP surveillance system ( Camera + NVR)

-           VoIP Phones

-           WiFi Gain access to Point

-           Network Routers

-           Industrial devices

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#5. Downsides AND PROS OF POE TECHNOLOGY


Let's firstly discuss the advantages of PoE. A PoE IP camera can get the energy from the Ethernet cable tv, no need extra electricity cable or power.


The maximum interconnection distance is 100 meters, which is ten times than WiFi. Since data transmission is through wired wire, there is no signal interference, no signal jamming.


For properly working of PoE devices, Ability sourcing equipment (PSE) is vital component, it can be a network PoE switch, or an intermediary device such as PoE injector.


A PoE switch is a lot expensive when compared to a traditional network turn, which increased just a little on cost.



#6. WIFI VS POE


No best solution, only right solution. If you wish to install one single IP camera for home monitoring, you can choose to use WiFi IP camera.

Ensuring the Wireless IP camera is installed within coverage of your Wi-fi router.


For more than one IP camera, PoE is recommended. PoE is a lot reliable than Wi-fi in terms of data transmission.


Furthermore, an IP camera system based on PoE is a lot easier to manage, centralized electric power solution becomes available e.g using uninterruptible power (UPS).


From my own investigation of security market, I found that Wi-fi IP cameras are widely used for non-professional indoor home security, and PoE IP video cameras are installed for outdoor surveillance system. But if you select Wireless IP Camera please read article below.




So how do you determine which wireless IP camera suits your preferences?


Firstly, establish what you need. Many buyers often don't really know which type of wireless IP camera suites and would satisfy their needs. As a result, they get sucked into buying cellular IP cameras that are beyond what they want.


Before clicking or picking on that item to buy, always ask yourself: what conditions will the camera be situated in? (Hallway, outdoor, low light or shiny); what perfection of data would you like to get? (HD images with or without music) and most importantly, what is your budget?


 

Secondly, another essential feature to consider before getting yourself a wireless IP camera is the skillet and tilt range.


Needless to say, this feature will rely upon the environment where you want to use the camera.


A wide skillet and tilt range is never a poor thing.


Thirdly, zooming capacity for the cordless IP camera is also vital.

Ensure that you check the kind of zooming capabilities, whether its optical or digital.


Most of the IP cameras on the market are digital, but you'll never fail to find one with optical focus.


Fourth, test the equipment before purchase.

This is vital, especially when you are buying from your neighborhood electronic store.


Always request for a test set up as this will allow you to look for the picture quality of the camera.


In addition, it will offer you an possibility to learn how to create the gear in an effective manner to ensure that you obtain the best image and audio quality.



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source :securitycamerawifi

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